Toy submarine



FIG. 1 is a perspective view of a toy submarine showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is an end view thereof looking from the left with respect to FIG. 1; and

FIG. 6 is an end view thereof looking from the right with respect to FIG. 1. 

The ornamental design for a toy submarine, substantially as shown. 